Pouring spouts for concrete



Feb. 28, 1961 G. T. GENTLE POURING SPOUTS FOR CONCRETE Filed March 11, 1958 INVENTOR.

ATTORNEYS POURING SPOUTS FQR CONCRETE Golden T. Gentle, 4333 NE. Mason, Portland, Oreg. Fiied Mar. 11, 1958, Ser. No. 720,764

1 Claim. (Cl. 214-17) This invention relates to pouring spouts and particularly to pouring spouts to be used in connection with the pouring of concrete from concrete mixers.

The primary object of the invention is to provide a pouring spout structure to direct the concrete materials on to road surfaces or the like without splatter-lug the same and without separating the pebbles from the fine cement concrete.

A still further object of the invention is to provide a pouring spout which will vary the amount of flow under the control of an operator positioned adjacent the spout and observing the pouring operation.

Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings, in which:

Figure l is a side elevation of the invention shown attached to the end of a discharge chute associated with concrete mixers, partially broken away for convenience of illustration.

Figure 2 is a fragmentary sectional view of the pouring spout shown in Figure 1, taken on line 22 of Figure 3 looking in the direction of the arrows.

Figure 3 is a transverse sectional view of the spout, taken on line 3-3 of Figure 2, looking in the direction of the arrows.

Figure 4 is a fragmentary sectional view, taken on line 4-4 of Figure 3, looking in the direction of the arrows.

Figure 5 is a fragmentary sectional view, taken on line 55 of Figure 2, looking in the direction of the arrows.

Referring now to the drawings in detail wherein like reference characters indicate like parts throughout the several figures, the reference character M indicates generally a conventional mobile concrete mixer truck.

The mixer M has a delivery chute 1t), pivotally mounted to the frame 11 of the truck M by brackets 12.

The invention comprises a pouring spout P which includes a hopper 13, supported on chains 14. The chains 14 each have a lower link thereof connected to one of a pair of hooks 15 secured to opposite sides of the hopper 13. The chute has an angle iron frame 16 secured to the terminal end thereof as best seen in Figure 2. The chains 14 each have a hook 17 secured to the upper end thereof and engaged over the rim 17' of the chute 10 to support the hopper 13. The frame 16 prevents the hook 17 from sliding ofi the end of the chute 10. The hopper 13 can be adjusted vertically with respect to the chute 16 by selecting the desired link of the chain 14 which is engaged with the hook 15.

A pair of spaced parallel shafts 18 run transversely of the lower end of the hopper 13 journalled in bearings 19 and 19'. Fixedly secured to the shafts 18 are transverse gates 20, which close to the position as illustrated in Figure 2 in full lines, and which open as indicated by the broken lines.

A pair of meshing gear segments 21 and 22 are keyed respectively to the adjacent ends of the shafts 18. The gear segments 21 and 22 maintain the shafts 18 in timed relation to each other, and are protected by a housing 23, fixedly secured to the hopper 13 by welding at 24 and a bracket 25.

An operating lever 26 is fixedly secured by welding to 2,973,110 Fatented Feb. 28, 1961 one of the gates 2t? and one of the shafts 18. The lever 26 is held in position closing the gates 21) by a brace 27, having one end pivotally secured to the hopper 13 at 23 and the other end bifurcated at 29 embracing the lever 26 to hold the gates 220 closed, as shown in the drawings.

in the operation of this new and improved pouring spout P, the operator releases the lever 26 from the bifurcation by pivoting the brace 27 out of the way and then by moving the lever 26 in the direction of the arrow, the gates 21? are opened to the position as indicated by the broken lines in Figures 2 and 3, the desired amount. The operator has definite control at all times of the amount of material being poured from the spout P.

As the aggregate or mix is delivered by the chute 10 into the hopper 13, the material will rise as illustrated in Figure 2, blocking the movement ofthe flow of mix within the chute 18 until the mix within the hopper 13 has been lowered sufliciently to allow the same to run out of the chute 10, This automatically controls the flow of mix from the mixer truck M.

The lower end of the delivery chute 18 is located below the upper end of the hopper 13. This is made possible by a cut-out portion 30 in the rear wall 30' of the hopper 13. A flexible piece of material 31, such as rubber, leather or the like, is detachably secured to the rear wall 30 by securing elements 32 and has the delivery chute 1t) resting on the upper edge thereof, conforming to its shape as illustrated particularly in Figure 2, providing a seal between the delivery chute 10 and the rear wall 30 of the hopper 13.

An outstanding feature of this invention is that by its use one is able to cause the mix to flow from the hopper 13 in a clean well directed stream of any desired amount, controlled by the operator observing the pouring of the material, therefore the gates 20 are of such a design that an even opening will be obtained without any obstructions to the flow of material through opening at the bottom of the hopper 13. The flexible piece of material 31 provides a seal between the hopper 13 and the chute 10 in each of the several positions of vertical adjustment of the hopper 13 with respect to the chute 10.

Having thus described the preferred embodiment of the invention, it should be understood that numerous structural modifications and adaptations may be resorted to without departing from the scope of the appended claim.

provide a yieldable resilient rest and sealing means for said chute.

References Cited in the file of this patent UNITED STATES PATENTS 543,182 Hunt July 23, 1895 737,379 Fetzer Aug. 25, 1903 2,209,115 Fitzgerald July 23, 1940 2,276,382 Francis Mar. 17, 1942 2,466,076 Bentley et a1. Apr. 5, 1949 2,678,738 Mangrurn May 18, 1954 2,734,668 Gardes Feb. 14, 1956 2,757,647 Kishline Aug. 7, 1956 2,779,498 Cole et al. Ian. 29, 1957 

